Blocking Detection Based on Synoptic Filters

<table>Northern Hemisphere blocking frequency: original TM-Index (solid), TM-Index for varying <svg height="11.425" id="M25" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 11.025 11.425" width="11.025" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,11.363)"><path d="M600 0h-557v24l268 633l28 8l261 -641v-24zM497 50l-194 489l-196 -489h390z" id="x394"></path></g>
</svg>-ranges in (<a href="https://static.hindawi.com/articles/amete/volume-2011/717812/figures/#EEq1">1</a>) (dashed, basic setup), and relative increase (dotted, in %).</table>

Advances in Meteorology

Blocking Detection Based on Synoptic Filters

Figure 1